Heating device for carbureters.



O. L. PAGE.

HEATING DEVICE FOR OARBURBTERS.

. APPLIOATION FILED MAR. 20, 1911. 1,048,576.

Patented Dec. 31, 1912.

2 SHEETS-SHEET 1.

FHOYOUTHO W SlCKEYT A WILNELMS CORP. NY.

' 0.L.PAGE." HEATING DEVICE FOR OARBURETERS. APPLICATION FILED MAE.20, 1 91 Patented De c.31,19 12.

2 SHEETS-SHEET 2.

, ORVILLE L. PAGE, OF DES MOINES, IOWA.

HEATING DEVICE CARIBURETERS.

Specification of Letters Patent.

Application filed March 20, 1911. Serial No. 615.601.

PatentedDec.31.1912.

.To all whom it m (13 concern Be it known that I, Onvinnr. Ii. Pace. a citizen of the United States, residingat Des Moines, in the county f Folk and State of Iowa, have invented certain new and useful Heating Devices for Carburetors.

, My invention rclatesto carbureting systems for gasolene'and other combustion enginesand especially to methods of heating the intake to same. Its object is to obviate plan view with a portion of outside and inside tanks torn away; Fig. III 'is a vertical section through the pipe 2 and valve 3; F 1g. IV represents a modification and Figs.

and VI are end elevation and vertical sec-- tion respectively of the s'ame; Fig. VII is --a modification; Fig. VIII is a modification.

Referring to Fig. III it will be noted that the principle of the appliance is in drawing the hot air off from a gasolene or other combustion engine exhaust pipe, around which the sleeve 6 is clamped. and through the valves 5 into an air-tight chamber 10 which has practically non-radiating walls. Inelosed within these non-radiating walls and surrounded by the hot air as it passes through is another incloscd chamber or tank 4 which contains water, oil or other liquid that seems best adapted to the immediate application of the appliance. Oil will notfreeze however long the engine remains at rest and has a much higher boiling point than Water. After passing through the air chamber 10 and giving up a portionof its. heat to the liquid in tank 4, the hot air passes on through pipe 2, which connects directly to air'intake of carburetor and from the ce the carbureted air takes'its usual is not running. The walls of tank 1 are made non-radiating by lining same with asbestos (11) or other of the well known nonradiating materials. \Vben the engine is started again the liquid in the inner tank I gives up its heat to the-air passing through the chamber 10 and thus enables one to get good carburetion and a warmed engine in starting in cold or damp weather. When the engine is running again the hot exhaust is again storing heat in tank 4. Undoubtedly the best material to make the appliance of is sheet copper on account of its durability and, also it gives tank 4 the necessary scnsitiveness to heat-absorption and radiation (tank 1 being insulatcdto produce nonradiation as stated above). The modification as shown in Fig. VII may more'readily be made of brass tubing. It. will.be seen that this method in its application particularly-to automobiles and aeroplanes makes possible the easy starting andctlicient running'in any weather (eliminates the necessity of putting amake-shift adjustment on the carburcter in winter known as enrichautomatic working-of tank 4 (Figs. I, II,

III, VII) in absorbing heat from the exhaust and giving it up to the cold engine, the appliance may be used aswell beyond its automatic limit of heat ret-aining'by simply pouring hot water or other liquid into tank 4 and thus warm air may be drawn directly into carbureter and engine cylinder as in the automatic operation.

Numeral 13 indicates a. 'butterfiy valve which is of the same type as the usual intake throttle valve at outletof carburetor to en-- gine. This butterfly valve opens to the atmosphere so that air may be taken directly from the atmosphere at anytime desired. This application of a valve at this point makes it unnecessary to disconnect the apparatus during warm weather. Even in warm Weather there are damp days when the appliance is effective.

Valves 3, 5 and 12 are all of the same design, namely, of a ball which is carried back into .its s eat oer the outlet by its own weight and the balls displacement, dueto the suction intake .of the engine, is limited so that it is bound to drop back in the valve seat. The number of alves (5) along exhaust pipe is so that these inlets are equal toor greater in capacity than valve 12.

16 and '15 indicate the ports in the relief valve of whichthere are four-one of'the former and three of the latter. The valve and cap is made up ofthree partseap '14 with a screw thread at 19, ball 17 and valve 3 with a screw thread at 18; ,j

Figs. IV, V and VI illustrate a modification showing that I do not confine myself to a liquid filled tank to absorb and radiate.

. the heat in the air-tight chamber 1 O','but may use a solid substance 4, Fig. VI,-such as soapstone or the like. It will be noted that the solid substance 4, Fig. VI has the same relative position in the tank 1' as the liquid tank at Fig. III. The valve arrangement for the intake of air from the exhaust pipe is also the sameas in Fig. III so that the hot air is made. to pass over the surface of the solidsubstance.

Fig. VII illustrates a modification showing that I do not confine myself to any particular location of the tanks that go to make up the appliance as they maybe either directly on the exhaust pipe, as in Figs. I, II, and III with pipe to carbureter, or as in this illustration the tanks may be close to the carbureter with pipe joining exhaust sleeve to same.

Fig. VIII- illustrates' a modification in which the inner heat absorbing and radiating tank 4. is the carbur'eter itself. The pipe joining exhaust sleeve 6 and air chamber. tank 1 forms a sleeve around theiengine intake pipe 7 and thus increases the efliciency of the heated intake. In this method" (emengine, substantially as set forth.

bodying the same principle as 'in previous figures) the heated airfrom the'exhaust pipe is drawn to the bottom of tank 1 (carbureter jacket) and enters the carbureter airintake at 2.

Itwill readily be seen why the carburetor is made to take air off of the bottom of tank 1 (carbureter jacket). The constant displacing of the air at that'point by the suction intake of the engine when .the engine is running causes all the air above that-point of intake to circulate downward and be displaced by heated air from the exhaust pipe.

This movement downward produces the necessary hot air clrculation over the surface of air-tight chamber with non-radiating Walls between the carbureter and the sleeve, a valve connection between the sleeve and the air-tight chamber, a heat absorbing and 1a diating substance in the air-tight chamber, a valve connectlon from said air-tight chamber to the air intake of the carbureter, said inlet and outlet valves to the said airetight chamber being so constructed that they "will remain closed except when air is being drawn through by the suction intake of the In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ORVILLE L. PAGE. Witnesses: v

SEYMOUR MoWERs, J. E. RISSE. 

